Means for removably connecting moving parts of machinery.



UN ITEI) SIA'IRS H WA ii I) U li M STON, 0F JACKSON, TENNESSEE MEANS FOR REMOVABLY CONNECHNG MOVING PARTS OF MACHINERY.

f no, 822,494.

Specification of Letters Patent.

Patented June 5, 1906.

Application filed September 28, 1905. Serial No. 280,510.

. 7T0 all whom it may concern.-

Be it, known that 1, HENRY HOWARD" I iisiisron, a citizen of the United States, re-

.sidin :at Jackson, in the county of Madison 15 and tate of Tennessee, have invented oerlain-new nnd useful Improvements in irienns .grm Removably Connecting Moving is-rls of Machinery, of which the following is n speeiy ii ce,t ion, reference being had therein to the 0 accompanying drawings.

My invention relates to means for removably attaching moving parts of machinery, s.nd in articular to pins for connecting the osf 'frisppate and rocker-arm rod of stearn'en- J i-g i r Y r Inthe starting of Corliss en incs his the 'ljiractice of "and cn ineers to irst drain the ,walcrfm n t im cylinder hyopening the valves r: igmngguolly by means of a su table lever or the -.%Q !1j.}i-. To do this, it is neressary to disconnect thc ;vr0eker=s arm reach-rod from the wristi g plefie, and in many constructions it is nus-ossaryfo'r the engineer to hold the roach-roll with {,gnnwdmnd while operating the valves with gingheotliepm iminifest disadvangage. Tool;- yint'e this necossiiv, means are provided for hyermjtting the, rml at surh times to slide T! lj ln its bearing in the wristplnie and :H;

' omtecutlw-tvio, Jusuchenswlherlillicillty ,lSllI'itSullhLi .ol' devising a fastening :lm'im or lit -yi nillich (am he quit-kl withdrawn or jllncgsil 'in position and whirl: will )XUVliii? ji ngainstwenr, at all limbs insuring ii close iii. ,!0 overc metin-so ililliculties and nltnin impm'lnnLn-sul1 s, 3 how dvvisml n (on- ,sigriliegl aneipmlienlurly rlaiim-(l, and illuslraled vin lilac. 1lg; -(nnpm1 ririg drawings, in 4 .:s'-l s i l 'Figrngo l: is n l'ragnu-nl of a Corliss waging showing the wrist-plalmuul ror'kerreach-rod.

I, Fig. Bis an 'hlstlgml detail, partly in sevi'ion',

. .og View, partly in seetiom'ol the key, Lulu-n nt rightisnglos lo Fig. .2. Referring to llie-drnwingsimire in (Mail,

the;wrist plulo l is provided with a suitnhh soliheoring-apertnre fortune reception of thv rvdn eml aortion 2 of a mon lwr 3, Wlllfli is hold secure y in place by a. not 4 and a, lurk-wishes 5, the latter engaging by a suitable lmlo ii the iollicrilinwslo ronslilute a fixed mmnvvlion' str oet ion ln-rvinnfler-Jo in more fully (lostud 7 on the member 3. 'This member is perforated, .215 shown at, 8, to form an opening adapted to receive a second member 9. At; the point 8' on this second member, where it in operation normally rests Within the member 3; there is formed a taper; hole adopted to receive the to er ortion 10 of a. key 11, serving to detae ab y connect the rod to said member 3. This key has a exigencies of the position it is designed to fill. One end is tapered at 10, as stated to engage QCUI'IGSPOIidiHglIQlB in the reach-ro i,and at the opposite end it is chambered or bored out to receive the coil-spring. l2 and the Hunger 13, the key 11 terminating in'the cross-handle 14 and vthe longer 13 in f he handle 15.

secting the interior bore ofrthe key and serving'to accommodate the cross-pin 17, fixed transversely in said plunger. i

The member 3' is bored axially from'its outer end beyond and intersecting the 0 en ing 8, such bore heing adapted to receiv v the key and (iii-est the taper end 10 of thesame through the second member. The outer end of said member 3 isrecessed, as shown at i8, and surh recess is closed by the plate 19, providsd wilh a slot 20, a central hole 21, inner lugs 22, and secured in the wrist-plate lays-rows 23. i I

The operation of the device is as follows: Whom the lfl Y II is notin place, the second- Hiiiiili? 5? slides freely in lhe opening 8 in the n wanlss-Ii. If it is desired toeonneetthetwo, the engineer l ski-s the kvy and holds it in such ssigimi that the truss-pin 1E eoineidos with he slot 2!; and thou inserts he keyand crosspin lhrough tho liulv 31 and slot into the sxinl lJUIl of the mcmlwr 3 and through the hols in tho second mvmber ii 'n'hereupon he gives it a half-tum and releases it. The spring 2 I2 puslwsthe plunger13outward,withthe pin 17 against the imam fare of the plate 19, and lay reaction holds Ihe taper l0 oft-he key 11 securely in plnve, lvm'ing no lostmotion of 5 lhvsm-oml mmulwrevqn all'lurlong(10ntinued llrl. When it is desired to disconnect the I'i-:tt'li-Iu(l and wrist-plate, the engineer grasps 4 the handles-H and 15, thus pressing them togvlhor and pushing llu: pin 17 inward against Hllm tension of ihe spring 12. and freeing ii;

culiar construction which adapts it to the Intermediate its length the he?! is slotted transversely at 16, such slot into aid from the lugs 22. He givesit a half-turn, bringing the pin 17 in line w1th the seat 20, and pulls it out. Thus it will be seen that the'second member and wrist-plate can be instantly'disconnccted insuring a tight connection at all times by com )ensating for wear.

Hitving thus fully described my invention, I claim as new and desire to secure by Lettars Patent of the United States- 1. In a connecting device, the combination,

with a member having an interior bore and a transverse intersecting opening, and a perforated late closing one end of'the bore, of a second member lying in the in tersecting opening and perforated transversely at a point corresponding with the bore, a key adapted to enter 1; bore in the first-mentioned mem ber throng the perforated plate and to enga e in-the transverse perforation of the secon member, a plunger movable within the key, andmeans carried by the plunger for engaging the plate. D

.2. na connecting device, the combination,

with a member having an interior bore anda transverse intersecting opening, and a perforated late closin one end of the bore, of a second member lying in the intersecting opening and provided with a'transverse tapenng perforation at a point corresponding with the bore a tapering key adapted to en ter the bore 11 the first-mentioned member through the perforated plate and to engage in the transverse perforation of the second member, a plunger movable within the key, and means carried ,by ing the plate.

3. In a connecting with a member having an interior bore and a transverse intersecting opening, and a perforated late closing one end of the bore, of a secon member lying in the intersecting opening and provided with a transverse tapering perforation at a point corresponding with the burr, a tapering key adapted to enter the bore in ihc first-mentioned member brough thv perforated plate and to engage in the transverse perforation of the second member, a spring-actuated )lunger longitudinally movable within the ey, and means projecting laterally from the plunger to engage the pinto. I

4. In a connecting device, theromhination,

- with a memlwr having an lflit'llol bore and a transverse intersecting opening, and a perforated slotted plate closing one end of the bore, of u. swond member lying in the inter aecting opening and provided with a transverse tapering wrforation at a point corresponding with tlw h Ill. a tapering key adapted to enter the bow in the first-mentioned member through th slotted plate and to engage in the transi crse perforation of the secand again connected,

the plunger for engag- I device, the combination,

ger beyond the key, and a spring bearingupon the plunger. l 5. Inaconnectingdevice,thecmnhination, l with a member having an interior bore and a I transverse intersecting opening, and a perfo rated slotted plate closingone end of the bore, of a second member lying in the intersecting openin and provided with a transvere tapering per oration at a point corresponding with the bore, a slotted tapering key adapted to enter the bore in the first-mentioned member through the slotted plate and to en age in the transverse perforation of the second member, a plunger movable within the key, a in extending transversely of the lunger e end the key throu h the slot, and a spring earing upon the p unger.

6. nadevice ofthe eharacter'described, the combination, with the wrist-plate a wrist-pin secured thereto and provided with an interior chamber, a erforated slotted pl'ate closing one end of t e chamber, and a reach-rod intersecting the chamber and provided with a transverse taperingperforation at a point corresponding thereto, of a tapering key adapted to enter the chamber through the perforated plate and to en age with its end in the perforation of the reac -rod, aplunger arranged withinithe key, a pin extending transversely of the plunger beyond the ke and a spring within the key bearing upon t e plunger. 7. In a device of'the character described, the combination, with the wrist-plate, a wristpin secured thereto and provided with-an interior chamber and a transverse opening, a perforated radially-slotted plate closing one end of the chamber, and a reach-rod lym in the opening and intersecting the cham er and provided with a transverse taperingperforation at a point -orresponding thereto, of a slotted .ta erin ey adapted to enter the chamber tliroug the perforated plate and to engage with'its end in the perforation of the reach-rod, a lunger arranged within the key, a pin exten ing transversely of the plunger i beyond the key through the slot, and a spring l within the key bearin upon the plunger. l 8. .In a-device of the character described, l the combination, with the wristeplate, a wristpin secured theretogrnd providedwith an interior chamber and a transverse intersecting o ening, a centrally-perforated and radiallys otted plate closing one end of the chamber with lugs arranged on the inner side of the f plate at the side of the slot, and a teach-rod slidable in the transverse opening of the wrist- & pin and provided at a oint corresponding to the longitudinal chamb r with a taper perforation, of a transversely-slotted tapering key l longitudinally bored and adapted to enter the chem her threugh the QBI'fQZ'tQd plate and Le l the axis ef the key, and a eeiled spring' in @116 engage with its end in the erforetion in the -ke -bore bearing agemst the plunger. [0 reach-rod, a, plun 'er slidab y arranged withn t-estimony whereof I hereunto affix my in the key, a pin fixed in the plunger and exsignature in resence of two Witnesses tending transversely beyond the walls of the HE RY HOWARD URMSTON.

Rey through the slot therein, said pin being Witnesses:

capable o passing through the slot in the A. B. TEAGUE,

plate but engaging the plate when turned on A. L. JENKINS. 

